The PetFusion Premium Pet Cooling Blanket will keep your dog or cat cool during all seasons with technology that releases their body heat. Releasing this heat keeps your pet at the optimal temperature to prevent overheating especially during summer months or winter when heaters are more often used. Designed for dogs of all ages from puppies to the elderly, and cats of all ages from a kitten to adults. Can be used with other mammals like a ferret, guinea pigs, sugar gliders, and other small furry pets. Available in four sizes to meet the needs of your small dog or cat, medium dog, a large dog, or extra large dog including extra small, medium, large, and extra large. Comes in two colors either cool grey or cool brown. The blanket is made of 80% Nylon and 20% Cool Technology PE Fabric with a Cool-sensing Value (q-max) of more than 0.3 (Generally Only 0.2 for Cool-sensing Fabrics), which can quickly absorb your pets body heat, keeping them cool in the summer and winter.